Cass Sunstein breaks down how social tipping points become political movements

Is change possible? Are there ways to make change happen? In a far-ranging "Salon Talks" episode Cass Sunstein, Harvard law professor and former Obama appointee, discussed Sunstein's new book, ["How Change Happens."](

About: "Salon Talks" Full Episodes

Interviews with artists, thinkers and newsmakers that explore the full range of the human condition